Thanks for all the replies..
We are SURE that it is a fox! Trust me...We have seen him chase down, kill, and carry away the chickens, and we have seen him try to pull the chickens through the dog crate...It's not a matter of figuring out what it is, it is definitely a fox, it's a matter of killing him.
I think we are going to go with baiting and shooting. I dont especially care if it is legal, he is killing all my chickens, and I can't keep them safe anymore...You have to realize, he is doing this in a high traffic area (the barn area...We have a lesson barn, and there are many people walking through, and me and the other trainer are working horses out there every day) He comes out in the middle of the day, and we have SEEN him go right in the barn to try to snatch a chicken...This was the first time he has come out in the early morning. I'm assuming they are getting desperate, because I have had the chickens and ducks locked up super tight, and asked the neighbors to keep theirs locked up for the last week or so to make him desperate...Theory is, we get them hungry enough, bait them, and shoot them.
Anyway, thanks again!
Lollipop - I'll working on sending you a PM now!